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| author | Matthew Schwartz <matthew.schwartz@linux.dev> | 2026-01-05 09:02:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-16 18:36:50 +0300 |
| commit | aced969e9bf3701dc75cfca57c78c031b7875b9d (patch) | |
| tree | 9d4ae542500273748779d1fd22c80aa3ce777b1e | |
| parent | eac85fbd0867c25ac517f58fae401d65c627edff (diff) | |
| download | linux-aced969e9bf3701dc75cfca57c78c031b7875b9d.tar.xz | |
mmc: rtsx_pci_sdmmc: increase power-on settling delay to 5ms
The existing 1ms delay in sd_power_on is insufficient and causes resume
errors around 4% of the time.
Increasing the delay to 5ms resolves this issue after testing 300
s2idle cycles.
Fixes: 1f311c94aabd ("mmc: rtsx: add 74 Clocks in power on flow")
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Link: https://patch.msgid.link/20260105060236.400366-3-matthew.schwartz@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/mmc/host/rtsx_pci_sdmmc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c index b847d79d4d8c..767816c09491 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -947,7 +947,7 @@ static int sd_power_on(struct realtek_pci_sdmmc *host, unsigned char power_mode) if (err < 0) return err; - mdelay(1); + mdelay(5); err = rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, SD_OUTPUT_EN); if (err < 0) |